Green again...tank questions

[Stickalip]

I cant believe how green I am to boating since buying my SC last fall. This is my 4th boat and I've been doing all repairs over 20 yrs. On my bay boat I've replaced almost all the electrical and many regular repairs, even fiber-glassing the anchor locker which I thought was an big accomplishment.

I've spend much time here trying to understand the terminology in the attempt to grasp what I can actually do verses what I need to pay someone to do. It seems much of the site is for the boat builders or for the seriously skilled. Although I have no regrets buying the boat I agree with the previous owner that my SC is not necessarily a project boat but I cant help but want to dig in to figure out what needs to be done and to make it mine. Anyway,, one of my concerns is fuel capacity because I run 2 strokes.

Can someone tell me if adding a second or larger capacity fuel tank a major project? It currently has a 95gal. Will adding another tank throw off weight distribution? Will it cause the boat to ride differently, will T 130's be enough hp. How much space is beneath the deck for fuel?

Any advice on the subject would very much appreciated and I look forward to contributing here when and if I can.